From f208e9508ace01864f2b37a45d07cda0641ff3ea Mon Sep 17 00:00:00 2001 From: Chuck Lever Date: Mon, 10 Jul 2023 12:42:20 -0400 Subject: SUNRPC: Count ingress RPC messages per svc_pool svc_xprt_enqueue() can be costly, since it involves selecting and waking up a process. More than one enqueue is done per incoming RPC. For example, svc_data_ready() enqueues, and so does svc_xprt_receive(). Also, if an RPC message requires more than one call to ->recvfrom() to receive it fully, each one of those calls does an enqueue. To get a sense of the average number of transport enqueue operations needed to process an incoming RPC message, re-use the "packets" pool stat. Track the number of complete RPC messages processed by each thread pool. Reviewed-by: Jeff Layton Reviewed-by: NeilBrown Signed-off-by: Chuck Lever --- net/sunrpc/svc_xprt.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'net/sunrpc/svc_xprt.c') diff --git a/net/sunrpc/svc_xprt.c b/net/sunrpc/svc_xprt.c index 20c66f659113..d3280ae70e36 100644 --- a/net/sunrpc/svc_xprt.c +++ b/net/sunrpc/svc_xprt.c @@ -871,6 +871,7 @@ void svc_recv(struct svc_rqst *rqstp) if (serv->sv_stats) serv->sv_stats->netcnt++; + percpu_counter_inc(&rqstp->rq_pool->sp_messages_arrived); rqstp->rq_stime = ktime_get(); svc_process(rqstp); out: @@ -1420,7 +1421,7 @@ static int svc_pool_stats_show(struct seq_file *m, void *p) seq_printf(m, "%u %llu %llu %llu 0\n", pool->sp_id, - percpu_counter_sum_positive(&pool->sp_sockets_queued), + percpu_counter_sum_positive(&pool->sp_messages_arrived), percpu_counter_sum_positive(&pool->sp_sockets_queued), percpu_counter_sum_positive(&pool->sp_threads_woken)); -- cgit v1.2.3